Rename InlineBox::nextLeafChild to nextLeafOnLine

Rename InlineBox::nextLeafChild to nextLeafOnLine
https://bugs.webkit.org/show_bug.cgi?id=202197

Reviewed by Zalan Bujtas.

The name is confusing as it never returns a child of the inline box it is called on.
Rename it and other similar functions that traverse within a line.

* dom/Position.cpp:
(WebCore::Position::getInlineBoxAndOffset const):
* editing/RenderedPosition.cpp:
(WebCore::RenderedPosition::RenderedPosition):
(WebCore::RenderedPosition::previousLeafOnLine const):
(WebCore::RenderedPosition::nextLeafOnLine const):
(WebCore::RenderedPosition::isEquivalent const):
(WebCore::RenderedPosition::bidiLevelOnLeft const):
(WebCore::RenderedPosition::bidiLevelOnRight const):
(WebCore::RenderedPosition::leftBoundaryOfBidiRun):
(WebCore::RenderedPosition::rightBoundaryOfBidiRun):
(WebCore::RenderedPosition::atLeftBoundaryOfBidiRun const):
(WebCore::RenderedPosition::atRightBoundaryOfBidiRun const):
(WebCore::RenderedPosition::positionAtLeftBoundaryOfBiDiRun const):
(WebCore::RenderedPosition::positionAtRightBoundaryOfBiDiRun const):
(WebCore::RenderedPosition::prevLeafChild const): Deleted.
(WebCore::RenderedPosition::nextLeafChild const): Deleted.
* editing/RenderedPosition.h:
(WebCore::RenderedPosition::RenderedPosition):
* editing/VisiblePosition.cpp:
(WebCore::VisiblePosition::leftVisuallyDistinctCandidate const):
(WebCore::VisiblePosition::rightVisuallyDistinctCandidate const):
* editing/VisibleUnits.cpp:
(WebCore::startPositionForLine):
(WebCore::endPositionForLine):
(WebCore::previousLinePosition):
(WebCore::nextLinePosition):
* layout/Verification.cpp:
(WebCore::Layout::collectFlowBoxSubtree):
* rendering/ComplexLineLayout.cpp:
(WebCore::ComplexLineLayout::updateRubyForJustifiedText):
(WebCore::expansionBehaviorForInlineTextBox):
(WebCore::ComplexLineLayout::computeInlineDirectionPositionsForSegment):
(WebCore::ComplexLineLayout::layoutRunsAndFloats):
* rendering/InlineBox.cpp:
(WebCore::InlineBox::previousOnLineExists const):
(WebCore::InlineBox::nextLeafOnLine const):
(WebCore::InlineBox::previousLeafOnLine const):
(WebCore::InlineBox::nextLeafOnLineIgnoringLineBreak const):
(WebCore::InlineBox::previousLeafOnLineIgnoringLineBreak const):
(WebCore::InlineBox::nextLeafChild const): Deleted.
(WebCore::InlineBox::prevLeafChild const): Deleted.
(WebCore::InlineBox::nextLeafChildIgnoringLineBreak const): Deleted.
(WebCore::InlineBox::prevLeafChildIgnoringLineBreak const): Deleted.
* rendering/InlineBox.h:
(WebCore::InlineBox::nextOnLine const):
(WebCore::InlineBox::previousOnLine const):
(WebCore::InlineBox::setNextOnLine):
(WebCore::InlineBox::setPreviousOnLine):
(WebCore::InlineBox::InlineBox):
(WebCore::InlineBox::prevOnLine const): Deleted.
(WebCore::InlineBox::setPrevOnLine): Deleted.
* rendering/InlineFlowBox.cpp:
(WebCore::InlineFlowBox::addToLine):
(WebCore::InlineFlowBox::removeChild):
(WebCore::InlineFlowBox::nodeAtPoint):
(WebCore::InlineFlowBox::firstLeafDescendant const):
(WebCore::InlineFlowBox::lastLeafDescendant const):
(WebCore::InlineFlowBox::placeEllipsisBox):
(WebCore::InlineFlowBox::collectLeafBoxesInLogicalOrder const):
(WebCore::InlineFlowBox::checkConsistency const):
(WebCore::InlineFlowBox::firstLeafChild const): Deleted.
(WebCore::InlineFlowBox::lastLeafChild const): Deleted.
* rendering/InlineFlowBox.h:
* rendering/InlineTextBox.cpp:
(WebCore::InlineTextBox::expansionBehavior const):
* rendering/RenderBlockFlow.cpp:
(WebCore::RenderBlockFlow::containsNonZeroBidiLevel const):
(WebCore::RenderBlockFlow::positionForPointWithInlineChildren):
* rendering/RenderCounter.cpp:
(WebCore::RenderCounter::rendererRemovedFromTree):
* rendering/RenderTextLineBoxes.cpp:
(WebCore::lineDirectionPointFitsInBox):
(WebCore::createVisiblePositionAfterAdjustingOffsetForBiDi):
(WebCore::RenderTextLineBoxes::positionForPoint const):
* rendering/RootInlineBox.cpp:
(WebCore::RootInlineBox::isHyphenated const):
(WebCore::RootInlineBox::lineSelectionGap):
(WebCore::RootInlineBox::selectionState):
(WebCore::RootInlineBox::firstSelectedBox):
(WebCore::RootInlineBox::lastSelectedBox):
(WebCore::RootInlineBox::closestLeafChildForLogicalLeftPosition):
* rendering/svg/SVGRootInlineBox.cpp:
(WebCore::SVGRootInlineBox::closestLeafChildForPosition):
(WebCore::SVGRootInlineBox::nodeAtPoint):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@250341 268f45cc-cd09-0410-ab3c-d52691b4dbfc